This model is discontinued
AirTAC has phased out the SU series. You can still order this code here: we ship the direct replacement SAU32X50, with the same bore, stroke, output force, port and mounting, so it fits the same application. The SAU replacement uses the same profile body, bore, stroke, force and SC-series mounting. It moves to the current CMSG / DMSG / EMSG sensor switches (the SU used CS1-B / DS1-B) and adds the SAUF valve-integrated option.

The AirTAC Airtac SU32~50 Standard Cylinder SU32X50 is a double-acting profile-type standard cylinder with a Ø32mm bore and 50mm stroke, 1/8" air ports and adjustable end cushioning. This model is discontinued — the direct replacement is the SAU32X50, which matches its bore, stroke, force and mounting.
The AirTAC SU32X50 is a discontinued double-acting profile-type cylinder featuring a 32mm bore and 50mm stroke. Built with an extruded aluminum barrel, it delivers 402 N of push force at 0.5 MPa through a 1/8" port, making it shorter and more compact than an ISO 15552 unit of the same bore. AirTAC replaced this legacy unit with the SAU32X50, a direct replacement retaining the exact same body dimensions, output force, port size, and SC-series mounting accessories.
Because this SKU lacks a magnet, it cannot accept a sensor; furthermore, the SAU upgrade switches to the current CMSG/DMSG/EMSG switch family if you ever need position detection. The SAU family also introduces the SAUF variant with a built-in 4M solenoid valve, an option the SU line never offered.
| Model | Airtac SU32~50 Standard Cylinder SU32X50 |
|---|---|
| Series | SU profile-type cylinder (discontinued) |
| Replacement | SAU32X50 |
| Bore size | Ø32 mm |
| Stroke | 50 mm |
| Acting type | Double acting |
| Port size | 1/8" |
| Rod thread | M10×1.25 |
| Fluid | Air (filtered by 40µm element) |
|---|---|
| Operating pressure | 0.15 – 1.0 MPa |
| Proof pressure | 1.5 MPa |
| Temperature | -20 to +70 °C |
| Speed range | 30 – 800 mm/s |
| Cushion | Adjustable, 21 mm |
| Max standard stroke | Up to 1000 mm |
Specifications follow the official AirTAC SU datasheet (now discontinued). The SAU32X50 carries the same ratings. Confirm against the product label before installation. Thread options: PT / G / NPT.
| Pressure | Push force | Pull force |
|---|---|---|
| 0.5 MPa | 402 N | 346 N |
| 0.7 MPa | 563 N | — |
| Max (@1.0 MPa) | 82 kgf | |
The SAU32X50 produces the same force from the same bore. Actual usable force is lower than theoretical; size with a margin.
| SU | Profile-type standard cylinder (discontinued). |
|---|---|
| 32 | Bore size in mm. |
| ×50 | Stroke length in mm. |
| -S | Optional built-in magnet for sensor position sensing. |
Legacy SU-family variants: SUD (double rod), SUJ (adjustable stroke) — each maps to its SAU equivalent (SUD→SAUD, SUJ→SAUJ). The current SAU line adds the SAUF valve-integrated option.
Provides compact actuation for sorting small boxes on a line, fitting neatly into tight machinery frames.
Acts as a pneumatic stop for lightweight pallets, utilizing the 50mm stroke to raise and lower the gate.
To replace this discontinued SU32X50, order the SAU32X50 direct equivalent, verifying your 1/8" port, M10x1.25 rod thread, and SC-series mounting (LB/FA/FB/CA/CB) stay the same. If you need position sensing, note this specific no-magnet SKU cannot take a switch, and the SAU upgrade requires the newer CMSG/DMSG/EMSG sensors rather than the legacy CS1-B/DS1-B. For higher force demands, stepping up to a 40mm bore yields 628 N push at 0.5 MPa; conversely, if you need less force, there is no smaller standard profile bore. A plain cylinder does not hold load on air loss—the 21mm cushions only decelerate—so add an external rod lock or pilot-operated check valve for vertical holding. The SAUF valve-integrated variant is also worth considering if you want to simplify piping.
Replacement checklist
Yes, the AirTAC SU32X50 is discontinued and end-of-life. The direct replacement is the SAU32X50. It shares the exact same 32mm bore, 50mm stroke, 402 N output force at 0.5 MPa, 1/8" port, and SC-series mounting hardware, so it drops directly into your existing installation.
This double-acting cylinder provides 402 N push and 345 N pull at 0.5 MPa, 563 N push at 0.7 MPa, and a theoretical maximum of 82 kgf at 1.0 MPa. Because this specific SKU lacks a magnet, it cannot accept a sensor; if sensing is needed, the SAU32X50 replacement uses CMSG/DMSG/EMSG switches.
Send us the quantity and destination. We confirm price, stock and lead time on the SAU32X50 replacement — usually within 7-8 hours.